The separation of impurities and water

1、In an oily water separator the oil wil

In an oily water separator the oil will travel （） to the oil collecting spaces.AupwardsBdownwardsCoutwardsDforward

2、If the cooling water temperature and t

If the cooling water temperature and the lube oil temperature in a diesel engine are too high, the cause can be （）Aa dirty lube oil strainerBinternal water leaksCan oil suction line restrictionDexcessive wears of the cooling water pum

3、The ability of an oil to separate clea

The ability of an oil to separate cleanly from an oil and water mixture is referred to as its （）.Aprecipitation numberBneutralization numberCpour pointDdemulsibility

4、The separating effect of oil separator

The separating effect of oil separator is not very good, the reason may be（）Atoo little seal waterBimproper gravity discCoil discharging pump not working very wellDlow water level of the working water

5、The cooling water of the diesel engine

The cooling water of the diesel engine should be treated, because it has（）Aalkale scenceBacidityCsalinityDimpurity

6、The principle of separation by which a

The principle of separation by which all commercially available oily water separators function is （） differential between oil and water.Athe temperatureBthe viscosityCthe gravityDthe size